1 But make sure you are aware of how to make co-sleeping safe. 2  If your baby is six months or younger, it's safest for her to sleep in a cot next to your bed. 3  Share the role of comforter with your partner, so both of you can help your baby fall back to sleep.
Weather in San Francisco in September 2017. Expect 22Â°C daytime maximum temperatures in the shade with on average 9 hours of sunshine per day in San Francisco in September. Check more long-term weather averages for San Francisco in September before you book your next holiday to California in 2017.
Days of Hot Weather in San Francisco. San Francisco averages just two days a year when the temperature reaches 90 degrees Fahrenheit, and none over 100. No matter how warm the day, at night the temperature always cools to less than 70 degrees. The city's hottest days usually occur in September and October.aximums and minimums are only part of the temperature picture. To fill in the rest, there's information on how many days a month get above or below a given temperature. To find out how often it rises over 60, 70 or 80 Â°F each month in San Francisco, scroll down farther.